ApplicationSettings has some nice static methods to act as a Key-Value pair local storage mechanism. It even has a TryGetValue method so you can easily build some intelligence into initializing your settings.

Using ApplicationSettings is as simple as:

IsolatedStorageSettings.ApplicationSettings[“KEY”] = value

and

value = IsolatedStorageSettings.ApplicationSettings[“KEY”]

Just make sure you remember to call the save method after setting a new value.

IsolatedStorageSettings.ApplicationSettings.Save();

No rocket-science today, but this might be exactly what you need to shed a few lines of code from your application.